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Marsh Landing Generating Station

Docket Number:

The California Energy Commission approved this project's Application For Certification on August 25, 2010. The Commission monitors the power plant's construction, operation and eventual decommissioning through a compliance proceeding.

GENERAL DESCRIPTION OF PROJECT

In August 2010, the California Energy Commission (Energy Commission) approved the Marsh Landing Generating Station (MLGS), a nominal 760 megawatt (MW) facility consisting of four combustion turbines operating in simple-cycle mode. The facility is located north of the City of Antioch in Contra Costa County on a 27-acre industrial site north of Wilbur Avenue, one mile northeast of the City of Antioch, and south of the San Joaquin River. Highway 4 and the Antioch Bridge are approximately 0.7 miles east of the site. The MLGS is adjacent to the Gateway Power Station and the existing retired Contra Costa Power.

The project consists of four Siemens 5000F combustion turbine units operating in simple-cycle mode. The 230 kilovolt (kV) circuit lines interconnect to the existing Pacific Gas & Electric (PG&E) switchyard located adjacent to the MLGS site. The MLGS uses natural gas delivered via a pipeline connecting to PG&E's interstate gas transmission Line 400, which runs approximately 0.25 miles east of the MLGS site.

Energy Commission Facility Certification Process

The California Energy Commission is the lead agency (for licensing thermal power plants 50 megawatts and larger) under the California Environmental Quality Act (CEQA) and has a certified regulatory program under CEQA.
Under its certified program, the Energy Commission is exempt from having to prepare an environmental impact report.
Its certified program, however, does require environmental analysis of the project, including an analysis of alternatives and mitigation measures to minimize any significant adverse effect the project may have on the environment.